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EP-4741793-A1 - PERFORMANCE MEASUREMENT METHOD FOR AIR CONDITIONER, PERFORMANCE MEASUREMENT DEVICE FOR AIR CONDITIONER, AND CONTROL METHOD FOR CONDITION GENERATOR

EP4741793A1EP 4741793 A1EP4741793 A1EP 4741793A1EP-4741793-A1

Abstract

The invention provides a method for measuring the performance of an air conditioner that achieves an improvement in the accuracy of performance measurement of a dynamically controlled air conditioner. A method for measuring the performance of an air conditioner 2 comprises: emulating the air state of a virtual room, the virtual room being a virtual reproduction of an actual room, using the air state of the air blown out from the air conditioner 2 to determine future changes in the air state of the virtual room; compensating for a delay in the air state of the test room relative to a setting of the condition generator 4 in the case of using the future change in the air state of the virtual room for the setting of the condition generator; controlling the condition generator 4 using, as the setting, the future change in the air state of the virtual room for which the delay has been compensated; and measuring the performance of the air conditioner in the test room under the measurement conditions generated by the condition generator 4.

Inventors

  • SAITO, KIYOSHI
  • GIANNETTI, Niccolo

Assignees

  • WASEDA UNIVERSITY

Dates

Publication Date
20260513
Application Date
20240624

Claims (9)

  1. A method for measuring the performance of an air conditioner, the air conditioner being dynamically operated in a test room equipped with a condition generator that generates measurement conditions, the method comprising: emulating the air state of a virtual room, the virtual room being a virtual reproduction of an actual room, using the air state of the air blown out from the air conditioner to determine future changes in the air state of the virtual room; compensating for a delay in the air state of the test room relative to a setting of the condition generator in the case of using the future change in the air state of the virtual room for the setting of the condition generator; controlling the condition generator using, as the setting, the future change in the air state of the virtual room for which the delay has been compensated; and measuring the performance of the air conditioner in the test room under the measurement conditions generated by the condition generator.
  2. The method for measuring the performance of an air conditioner according to claim 1, wherein the delay is compensated by feedforward control using the air state of the air blown out from the air conditioner.
  3. The method for measuring the performance of an air conditioner according to claim 2, wherein the delay is further compensated by feedback control using the air state inside the test room.
  4. The method for measuring the performance of an air conditioner according to claim 2 or 3, wherein the delay is further compensated by feedforward control using the air state outside the test room.
  5. The method for measuring the performance of an air conditioner according to claim 1, wherein the air state comprises at least either one of the temperature or humidity of the air.
  6. The method for measuring the performance of an air conditioner according to claim 1, wherein in the compensation for the delay, an error of the air state of the test room relative to the air state of the virtual room for which the delay has been compensated is further compensated for.
  7. The method for measuring the performance of an air conditioner according to claim 1, comprising: generating a delay model that indicates the delay of the air state of the test room relative to the setting of the condition generator; and changing the setting for the condition generator so that the delay becomes smaller, and generating a compensation model used for the compensation of the delay based on said change.
  8. An apparatus for measuring the performance of an air conditioner, the air conditioner being dynamically operated in a test room equipped with a condition generator that generates measurement conditions, the apparatus comprising: an emulation unit configured to emulate the air state of a virtual room, the virtual room being a virtual reproduction of an actual room, using the air state of the air blown out from the air conditioner to determine future changes in the air state of the virtual room; a delay compensation unit configured to compensate for a delay in the air state of the test room relative to a setting of the condition generator in the case of using the future change in the air state of the virtual room for the setting of the condition generator and to control the condition generator using, as the setting, the future change in the air state of the virtual room for which the delay has been compensated; and an air conditioning performance measurement unit configured to measure the performance of the air conditioner in the test room under the measurement conditions generated by the condition generator.
  9. A method for controlling a condition generator, the condition generator being installed in a test room and generating conditions for performance measurement of an air conditioner dynamically operated, the method comprising: emulating the air state of a virtual room, the virtual room being a virtual reproduction of an actual room, using the air state of the air blown out from the air conditioner to determine future changes in the air state of the virtual room; compensating for a delay in the air state of the test room relative to a setting of the condition generator in the case of using the future change in the air state of the virtual room for the setting of the condition generator; and controlling the condition generator using, as the setting, the future change in the air state of the virtual room for which the delay has been compensated.

Description

TECHNICAL FIELD The present invention relates to a method and apparatus for measuring the performance of an air conditioner, and a method for controlling a condition generator. BACKGROUND ART As a simple method for measuring the performance of an air conditioner, a method is known in which the performance is measured by driving the air conditioner in a stable condition without performing capacity control by fixing the rotation speed of the compressor. However, since such performance measurement in a fixed operating state, that is, a static operating state is not carried out under actual operating conditions, there is a risk that a discrepancy may arise between the measurement results and the performance in the actual use environment. Therefore, performance measurement while dynamically changing the operating state of the air conditioner has been studied. Such performance measurement under a dynamic operating state is also sometimes referred to as load-based performance measurement. According to the technology disclosed in Patent Literature 1, a predetermined test environment, such as a test room, is prepared to measure the performance of an air conditioner in a dynamic operating state. This technology involves measuring the performance of an air conditioner in a dynamic operating state after controlling electrical equipment, human body models, and the like placed in the test room in consideration of the actual use environment, such as heat generation from the electrical equipment, living heat inside the room and the like. LIST OF CITATIONS Patent Literature [Patent Literature 1] JP 2007-333557 A SUMMARY OF INVENTION PROBLEM TO BE SOLVED BY THE INVENTION The technology disclosed in Patent Literature 1 requires the construction of identical test rooms at each location to ensure identical implementation environments when the performance measurement is implemented at different sites. However, it is difficult to reproduce a completely identical test environment, including the external environment, which may lead to variations in the performance measurement results. Therefore, a method has been studied in which a condition generator configured by an air conditioner different from the air conditioner to be measured, is installed in the test room. This method emulates a virtual test room (virtual room) based on the state of the air blown out from the air conditioner to be measured, followed by the performance measurement of the air conditioner to be measured while controlling the condition generator so that the actual air state of the test room matches the air state of the virtual room derived from the emulation. This method can exclude factors that depend on the environment such as the heat capacity of the test room and thus can measure the performance of the air conditioner in a dynamic operating state while achieving a highly reproducible measurement environment. However, even with this method involving emulation, delays may occur due to the control of the condition generator and elements such as the thermal capacity of the air in the test room, which may cause the change (response) of the actual test room state to lag behind the virtual room state derived from the emulation. As a result, there has been a problem that these delays can affect the results of air conditioner performance measurement under dynamic operating conditions. The present invention has been made in view of the above-described problem, and an object thereof is to provide a method and apparatus for measuring the performance of an air conditioner and a method for controlling a condition generator, which achieves an improvement in the accuracy of performance measurement of the air conditioner in a dynamic operating state. MEANS TO SOLVE THE PROBLEM The method for measuring the performance of an air conditioner according to the present invention measures the performance of an air conditioner dynamically operated in a test room equipped with a condition generator that generates measurement conditions. This method for measuring the performance of an air conditioner comprises: emulating the air state of a virtual room, the virtual room being a virtual reproduction of an actual room, using the air state of the air blown out from the air conditioner to determine future changes in the air state of the virtual room; compensating for a delay in the air state of the test room relative to a setting of the condition generator in the case of using the future change in the air state of the virtual room for the setting of the condition generator; controlling the condition generator using, as the setting, the future change in the air state of the virtual room for which the delay has been compensated; and measuring the performance of the air conditioner in the test room under the measurement conditions generated by the condition generator. The apparatus for measuring the performance of an air conditioner according to the present invention measures the performanc